<template>
  <div class="main">
    <a-form
      id="formLogin"
      class="user-layout-login"
      ref="formLogin"
      :form="form"
      @submit="handleSubmit"
    >
      <a-tabs
        :activeKey="customActiveKey"
        :tabBarStyle="{ textAlign: 'center', borderBottom: 'unset' }"
        @change="handleTabClick"
      >
        <a-tab-pane key="tab1" tab="账号登录">
          <a-alert v-if="isLoginError" type="error" showIcon style="margin-bottom: 24px;"
                   message="账户或密码错误（admin/ant.design )"/>
          <a-form-item>
            <a-input
              size="large"
              type="text"
              placeholder="账户: admin"
              v-decorator="[
                'userName',
                {initialValue:'kiwipeach',rules: [{ required: true, message: '请输入帐户名或邮箱地址' }, { validator: handleUsernameOrEmail }], validateTrigger: 'change'}
              ]"
            >
              <a-icon slot="prefix" type="user" :style="{ color: 'rgba(0,0,0,.25)' }"/>
            </a-input>
          </a-form-item>

          <a-form-item>
            <a-input
              size="large"
              type="password"
              autocomplete="false"
              placeholder="密码: admin or ant.design"
              v-decorator="[
                'password',
                {initialValue:'123456',rules: [{ required: true, message: '请输入密码' }], validateTrigger: 'blur'}
              ]"
            >
              <a-icon slot="prefix" type="lock" :style="{ color: 'rgba(0,0,0,.25)' }"/>
            </a-input>
          </a-form-item>
        </a-tab-pane>
        <a-tab-pane key="tab2" tab="用户注册">
          <a-form-item>
            <a-input
              size="large"
              type="text"
              placeholder="邮箱"
              v-decorator="['email', {rules: [{ required: true, type: 'email', message: '请输入邮箱地址' }], validateTrigger: ['change', 'blur']}]"
            ></a-input>
          </a-form-item>

          <a-popover
            placement="rightTop"
            :trigger="['focus']"
            :getPopupContainer="(trigger) => trigger.parentElement"
            v-model="state.passwordLevelChecked">
            <template slot="content">
              <div :style="{ width: '240px' }">
                <div :class="['user-register', passwordLevelClass]">强度：<span>{{ passwordLevelName }}</span></div>
                <a-progress :percent="state.percent" :showInfo="false" :strokeColor=" passwordLevelColor "/>
                <div style="margin-top: 10px;">
                  <span>请至少输入 6 个字符。请不要使用容易被猜到的密码。</span>
                </div>
              </div>
            </template>
            <a-form-item>
              <a-input
                size="large"
                type="password"
                @click="handlePasswordInputClick"
                autocomplete="false"
                placeholder="至少6位密码，区分大小写"
                v-decorator="['password', {rules: [{ required: true, message: '至少6位密码，区分大小写'}, { validator: this.handlePasswordLevel }], validateTrigger: ['change', 'blur']}]"
              ></a-input>
            </a-form-item>
          </a-popover>

          <a-form-item>
            <a-input
              size="large"
              type="password"
              autocomplete="false"
              placeholder="确认密码"
              v-decorator="['password2', {rules: [{ required: true, message: '至少6位密码，区分大小写' }, { validator: this.handlePasswordCheck }], validateTrigger: ['change', 'blur']}]"
            ></a-input>
          </a-form-item>

          <a-row :gutter="16">
            <a-col class="gutter-row" :span="16">
              <a-form-item>
                <a-input size="large" type="text" placeholder="验证码"
                         v-decorator="['captcha', {rules: [{ required: true, message: '请输入验证码' }], validateTrigger: 'blur'}]">
                  <a-icon slot="prefix" type="mail" :style="{ color: 'rgba(0,0,0,.25)' }"/>
                </a-input>
              </a-form-item>
            </a-col>
            <a-col class="gutter-row" :span="8">
              <a-button
                class="getCaptcha"
                tabindex="-1"
                :disabled="state.smsSendBtn"
                @click.stop.prevent="getCaptcha"
                v-text="!state.smsSendBtn && '获取验证码' || (state.time+' s')"
              ></a-button>
            </a-col>
          </a-row>
        </a-tab-pane>
      </a-tabs>

      <a-form-item>
        <a-checkbox v-model="rememberMe">自动登录</a-checkbox>
        <router-link
          :to="{ name: 'recover', params: { user: 'aaa'} }"
          class="forge-password"
          style="float: right;"
        >忘记密码
        </router-link>
      </a-form-item>

      <a-form-item style="margin-top:24px">
        <a-button
          size="large"
          type="primary"
          htmlType="submit"
          class="login-button"
          :loading="state.loginBtn"
          :disabled="state.loginBtn"
        >确定
        </a-button>
      </a-form-item>

      <div class="user-login-other">
        <span>其他登录方式</span>
        <a @click="thirdLoginAction(`qq`)">
          <QqSvg class="item-icon" style="width: 22px;height: 22px; "></QqSvg>
        </a>
        <a @click="thirdLoginAction(`github`)">
          <GithubSvg class="item-icon" style="width: 22px;height: 22px; "></GithubSvg>
        </a>
        <a @click="thirdLoginAction(`gitee`)">
          <GiteeSvg class="item-icon" style="width: 22px;height: 22px; "></GiteeSvg>
        </a>
        <router-link class="register" :to="{ name: 'register' }">注册账户</router-link>
      </div>
    </a-form>

    <two-step-captcha
      v-if="requiredTwoStepCaptcha"
      :visible="stepCaptchaVisible"
      @success="stepCaptchaSuccess"
      @cancel="stepCaptchaCancel"
    ></two-step-captcha>
  </div>
</template>

<script>
  import Vue from 'vue'
  import TwoStepCaptcha from '@/components/tools/TwoStepCaptcha'
  import { mapActions, mapGetters } from 'vuex'
  import { timeFix } from '@/utils/util'
  import { getSmsCaptcha } from '@/api/login'
  import GiteeSvg from '@/assets/iconfont/mayun.svg?inline'
  import QqSvg from '@/assets/iconfont/QQ.svg?inline'
  import GithubSvg from '@/assets/iconfont/GitHub.svg?inline'
  // import { axios } from '@/utils/request'
  //阿里的iconfont
  const levelNames = {
    0: '低',
    1: '低',
    2: '中',
    3: '强'
  }
  const levelClass = {
    0: 'error',
    1: 'error',
    2: 'warning',
    3: 'success'
  }
  const levelColor = {
    0: '#ff0000',
    1: '#ff0000',
    2: '#ff7e05',
    3: '#52c41a'
  }
  export default {
    components: {
      TwoStepCaptcha,
      GiteeSvg,
      QqSvg,
      GithubSvg
    },
    data() {
      return {
        rememberMe: true,
        customActiveKey: 'tab1',
        loginBtn: false,
        // login type: 0 email, 1 username, 2 telephone
        loginType: 0,
        isLoginError: false,
        requiredTwoStepCaptcha: false,
        stepCaptchaVisible: false,
        form: this.$form.createForm(this),
        state: {
          time: 60,
          smsSendBtn: false,
          passwordLevel: 0,
          passwordLevelChecked: false,
          percent: 10,
          progressColor: '#FF0000'
        },
        registerBtn: false
      }
    },
    computed: {
      ...mapGetters(['loginModeType']),
      passwordLevelClass() {
        return levelClass[this.state.passwordLevel]
      },
      passwordLevelName() {
        return levelNames[this.state.passwordLevel]
      },
      passwordLevelColor() {
        return levelColor[this.state.passwordLevel]
      }
    },
    created() {
    },
    methods: {
      ...mapActions(['Login', 'Logout']),
      thirdLoginAction(platform) {
        let loginUrl = `http://www.kiwipeach.cn/oauth2.0/${platform}/login`
        this.openwindow({
          url: loginUrl,
          name: '三方登录窗口授权',
          iWidth: 1200,
          iHeight: 600
        })
      },
      /**
       *
       * 例如：{ url: qqloginUrl, name: '三方登录窗口授权', iWidth: 800, iHeight: 400 }
       * @param opt
       * @returns {Window}
       */
      openwindow: function(opt) {
        // url, name, iWidth, iHeight
        var url = opt.url                            //转向网页的地址;
        var name = opt.name                           //网页名称，可为空;
        var iWidth = opt.iWidth                         //弹出窗口的宽度;
        var iHeight = opt.iHeight                        //弹出窗口的高度;
        //window.screen.height获得屏幕的高，window.screen.width获得屏幕的宽
        var iTop = (window.screen.height - 30 - iHeight) / 2       //获得窗口的垂直位置;
        var iLeft = (window.screen.width - 10 - iWidth) / 2        //获得窗口的水平位置;
        return window.open(url, name, 'height=' + iHeight + ',,innerHeight=' + iHeight + ',width=' + iWidth + ',innerWidth=' + iWidth + ',top=' + iTop + ',left=' + iLeft + ',toolbar=no,menubar=no,scrollbars=auto,resizeable=no,location=no,status=no')

      },
      // handler
      handleUsernameOrEmail(rule, value, callback) {
        const { state } = this
        const regex = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+((\.[a-zA-Z0-9_-]{2,3}){1,2})$/
        if (regex.test(value)) {
          state.loginType = 0
        } else {
          state.loginType = 1
        }
        callback()
      },
      handleTabClick(key) {
        this.customActiveKey = key
        // this.form.resetFields()
      },
      handlePasswordLevel(rule, value, callback) {
        let level = 0

        // 判断这个字符串中有没有数字
        if (/[0-9]/.test(value)) {
          level++
        }
        // 判断字符串中有没有字母
        if (/[a-zA-Z]/.test(value)) {
          level++
        }
        // 判断字符串中有没有特殊符号
        if (/[^0-9a-zA-Z_]/.test(value)) {
          level++
        }
        this.state.passwordLevel = level
        this.state.percent = level * 30
        if (level >= 2) {
          if (level >= 3) {
            this.state.percent = 100
          }
          callback()
        } else {
          if (level === 0) {
            this.state.percent = 10
          }
          callback(new Error('密码强度不够'))
        }
      },

      handlePasswordCheck(rule, value, callback) {
        const password = this.form.getFieldValue('password')
        console.log('value', value)
        if (value === undefined) {
          callback(new Error('请输入密码'))
        }
        if (value && password && value.trim() !== password.trim()) {
          callback(new Error('两次密码不一致'))
        }
        callback()
      },

      handlePhoneCheck(rule, value, callback) {
        console.log('handlePhoneCheck, rule:', rule)
        console.log('handlePhoneCheck, value', value)
        console.log('handlePhoneCheck, callback', callback)

        callback()
      },

      handlePasswordInputClick() {
        this.state.passwordLevelChecked = false
      },
      handleSubmit(e) {
        e.preventDefault()
        const {
          form: { validateFields },
          state,
          customActiveKey,
          Login
        } = this

        state.loginBtn = true

        const validateFieldsKey = customActiveKey === 'tab1' ? ['userName', 'password'] : ['mobile', 'captcha']

        validateFields(validateFieldsKey, { force: true }, (err, values) => {
          if (!err) {
            console.log('login form', values)
            const loginParams = { ...values }
            delete loginParams.userName
            loginParams[!state.loginType ? 'email' : 'userName'] = values.userName
            //loginParams.password = md5(values.password)
            loginParams.password = values.password
            Login(loginParams)
              .then((res) => this.loginSuccess(res))
              .catch(err => {
                this.requestFailed(err)
                state.loginBtn = false
              })
              .finally(() => {
                state.loginBtn = false
              })
            setTimeout(() => {
              state.loginBtn = false
            }, 600)
          } else {
            setTimeout(() => {
              state.loginBtn = false
            }, 600)
          }
        })
      },
      getCaptcha(e) {
        e.preventDefault()
        const { form: { validateFields }, state } = this

        validateFields(['mobile'], { force: true }, (err, values) => {
          if (!err) {
            state.smsSendBtn = true

            const interval = window.setInterval(() => {
              if (state.time-- <= 0) {
                state.time = 60
                state.smsSendBtn = false
                window.clearInterval(interval)
              }
            }, 1000)

            const hide = this.$message.loading('验证码发送中..', 0)
            getSmsCaptcha({ mobile: values.mobile }).then(res => {
              setTimeout(hide, 2500)
              this.$notification['success']({
                message: '提示',
                description: '验证码获取成功，您的验证码为：' + res.result.captcha,
                duration: 8
              })
            }).catch(err => {
              setTimeout(hide, 1)
              clearInterval(interval)
              state.time = 60
              state.smsSendBtn = false
              this.requestFailed(err)
            })
          }
        })
      },
      stepCaptchaSuccess() {
        this.loginSuccess()
      },
      stepCaptchaCancel() {
        this.Logout().then(() => {
          this.loginBtn = false
          this.stepCaptchaVisible = false
        })
      },
      loginSuccess(res) {
        this.isLoginError = false
        if (this.loginModeType === 'blog') {
          location.reload()
        } else if (this.loginModeType === 'admin') {
          location.href = '/admin'
        }else{
          location.reload()
        }
        setTimeout(() => {
          this.$store.dispatch('setLoginVisible', false)
          this.$notification.success({
            message: '欢迎',
            description: `${timeFix()}，欢迎回来`
          })
        }, 1000)
      },
      requestFailed(err) {
        console.error('异常信息', err)
        this.isLoginError = true
        this.$notification['error']({
          message: '错误',
          description: ((err.response || {}).data || {}).message || '请求出现错误，请稍后再试',
          duration: 4
        })
      }
    }
  }
</script>

<style lang="less" scoped>
  .icon {
    width: 1em;
    height: 1em;
    vertical-align: -0.15em;
    fill: currentColor;
    overflow: hidden;
  }

  .user-layout-login {
    label {
      font-size: 14px;
    }

    .getCaptcha {
      display: block;
      width: 100%;
      height: 40px;
    }

    .forge-password {
      font-size: 14px;
    }

    button.login-button {
      padding: 0 15px;
      font-size: 16px;
      height: 40px;
      width: 100%;
    }

    .user-login-other {
      text-align: left;
      margin-top: 24px;
      line-height: 22px;

      .item-icon {
        font-size: 24px;
        color: rgba(0, 0, 0, 0.2);
        margin-left: 16px;
        vertical-align: middle;
        cursor: pointer;
        transition: color 0.3s;

        &:hover {
          color: #1890ff;
        }
      }

      .register {
        float: right;
      }
    }
  }
</style>
